UPDATE `表名` set `字段`=REPLACE( `字段`,'要被替换字符串的指定字符','替换后的指定字符串') WHERE 条件
SELECT tips_content FROM `hospital_vacc_screen_setting` WHERE hospital_id=45
UPDATE `hospital_vacc_screen_setting` set `tips_content` =REPLACE(`tips_content`,'"batchNo":true}','"batchNo":false}') WHERE hospital_id=45